diff options
Diffstat (limited to 'fs/overlayfs/file.c')
| -rw-r--r-- | fs/overlayfs/file.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c index 951683a66ff6..39737c2aaa84 100644 --- a/fs/overlayfs/file.c +++ b/fs/overlayfs/file.c @@ -107,15 +107,21 @@ static int ovl_real_fdget_meta(const struct file *file, struct fd *real, { struct dentry *dentry = file_dentry(file); struct path realpath; + int err; real->flags = 0; real->file = file->private_data; - if (allow_meta) + if (allow_meta) { ovl_path_real(dentry, &realpath); - else + } else { + /* lazy lookup of lowerdata */ + err = ovl_maybe_lookup_lowerdata(dentry); + if (err) + return err; + ovl_path_realdata(dentry, &realpath); - /* TODO: lazy lookup of lowerdata */ + } if (!realpath.dentry) return -EIO; @@ -153,6 +159,11 @@ static int ovl_open(struct inode *inode, struct file *file) struct path realpath; int err; + /* lazy lookup of lowerdata */ + err = ovl_maybe_lookup_lowerdata(dentry); + if (err) + return err; + err = ovl_maybe_copy_up(dentry, file->f_flags); if (err) return err; @@ -161,7 +172,6 @@ static int ovl_open(struct inode *inode, struct file *file) file->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC); ovl_path_realdata(dentry, &realpath); - /* TODO: lazy lookup of lowerdata */ if (!realpath.dentry) return -EIO; |